body {
    height:100%;
    margin-bottom:0px;
    padding: 0;
    margin: 0;
}
.head {
    background:#1E90FF;
    width:100%;
    height:40px;
}
.div1 {
    text-align:center;
    font-family:Serif;
    font-size:150%;
    float:left;
    padding:0px;
    border:4px;
}
#ul1 {
    list-style-type:none;
    margin:auto;
    font-size:25%;
}
#li1 {
    list-style-type:none;
    padding:13px;
    float:right;
    display:block;
}
a {
    text-decoration:none;
}
#ul2 {
    clear: both;
    color: red;
    font-size: 100%;
    line-height: 100px;
    overflow: hidden;
    margin-right: 100px;
}
.footer {
    position:relative;
    background:pink;
    width:100%;
    height:30px;
    bottom:0;
    padding-top:10px;
    padding-bottom:0;
    text-align:center;
}
#exit{
    position: absolute;
    width: 200px;
    height: 50px;
    background-color: lime;
    left: 50%;
    top:50%;
}